US History CLEP- REA vs. Peterson's

To anyone that has taken the US History I CLEP---- are the REA or Peterson's practice tests closer to the real thing? I take this test Friday and need to know which practice tests to focus on with the little time I have left to study.

My REA scores were closest to my CLEP score. My Petersons scores were only a little lower, though. If you have the Official Clep SG, take that PT—it's really accurate. And don't forget to study the PTs when you finish taking them

"I'm going on an adventure!' ~AUJ"It is our fight." ~DoS"I am not alone." ~BotFA"All we have to decide is what to do with the time that's given to us." ~FotR"There is still hope." ~TTT"Courage..." "This day, we fight!" ~RotK